Prepare for TypeScript 3.7

Summary:
These are the only four errors currently happening when upgrading to the 3.7 beta.
Luckily, these are all forwards-compatible changes.

Reviewed By: jknoxville

Differential Revision: D17711797

fbshipit-source-id: 429036e90300c81848cc3252b67bb89871ff2e32

src/chrome/LocationsButton.tsx

@@ -99,9 +99,9 @@ class LocationsButton extends Component<Props, State> {
     });
   };
 
-  componentDidMount = () => {
+  componentDidMount() {
     this.updateBookmarks();
-  };
+  }
 
   render() {
     const {currentURI} = this.props;

src/plugins/cpu/index.tsx

@@ -391,9 +391,9 @@ export default class CPUFrequencyTable extends FlipperDevicePlugin<
     });
   };
 
-  teardown = () => {
+  teardown() {
     this.cleanup();
-  };
+  }
 
   buildRow = (freq: CPUFrequency, idx: number) => {
     const selected = this.state.selectedIds.indexOf(idx) >= 0;

src/plugins/navigation/components/SearchBar.tsx

@@ -91,7 +91,7 @@ class SearchBar extends Component<Props, State> {
     return null;
   };
 
-  render = () => {
+  render() {
     const {bookmarks, providers} = this.props;
     const {
       autoCompleteSheetOpen,
@@ -158,7 +158,7 @@ class SearchBar extends Component<Props, State> {
         </Toolbar>
       </ToolbarContainer>
     );
-  };
+  }
 }
 
 export default SearchBar;

src/plugins/navigation/index.tsx

@@ -100,7 +100,7 @@ export default class extends FlipperPlugin<State, any, PersistedState> {
     );
   };
 
-  componentDidMount = () => {
+  componentDidMount() {
     const {selectedApp} = this.props;
     this.subscribeToNavigationEvents();
     this.getDevice()
@@ -122,7 +122,7 @@ export default class extends FlipperPlugin<State, any, PersistedState> {
         bookmarksProvider: bookmarksToAutoCompleteProvider(bookmarks),
       });
     });
-  };
+  }
 
   navigateTo = async (query: string) => {
     const filteredQuery = filterOptionalParameters(query);